@article {28033,
	title = {An integrated productivity-practices implementation index for planning the execution of infrastructure projects},
	journal = {Journal of Infrastructure Systems},
	volume = {22},
	year = {2016},
	url = {https://doi.org/10.1061/(ASCE)IS.1943-555X.0000275},
	author = {Hassan Nasir and Carl T Haas and Carlos H Caldas and Paul M Goodrum}
}